Venkatraman R, Sandhiya R. EVALUATION OF EFFICACY OF EPIDURAL BUTORPHANOL TARTRATE FOR POSTOPERATIVE ANALGESIA. Int J Pharm Pharm Sci [Internet]. 2015 Feb. 1 [cited 2024 May 6];7(2):52-4. Available from: https://journals.innovareacademics.in/index.php/ijpps/article/view/3837